I called a friend of mine in japan and he is translating the blog for me, once I get the translation I will post it. He has however told me that there is no explanation on how to do the mod, the blog is about the mod and I guess what it does to the sound. Hopefully I will get the transcript in the next day or two.

Holy crapadoodle... hand picked matched pads... and everything else... I'm sold... too bad it is over in Japan... thanks for posting, great read.
I can even get my vent hole taper corrected... did not see that I could get my eyes dyed to match my cans...
"Smooth air flow is realized by optimizing the diameter of the vent hole on the outer surface of the baffle plate and performing taper processing."
Hell,, maybe send a pair to Japan... heard a geisha play there once upon a time... perfection can be an obsession... it lives there...